Ceramic tile



CERAMIC TILE Filed gulyz, 1928 ATTORNEYS Patented Jan. 27,1931

UNITED STATES N ILS H. CEDERQUIST, 0F ALE-AMBRA, CALIFORNIA CERAMIC TILEL c Application mea July 2, 192s. serial No. 289,891.

This invention relates to a ceramic tile and the method of glazing thesurface thereof. Ceramic tiles are now used for ornamental veneering andfacing. It is especially desirable to have a shallow tile suit-able forattachment to backingswhich may be made of wood or like material so asto form panels easily installed. The face ofsuch tiles produce apleasing eect, if they are sloped toward the edges and crowned.Furthermore, a 'glaze on the front face of such tile produces visuallychanging effects in accordance with the direction of light impingement,reflection and refraction. It is current practice to add powderedvitreous material having coloring matter to produce a striation ora'mottled effect. It is diicult to distribute this colored material overthe face of the tile with uniformity and the ultimate appearance isdependent upon the skill displayed in initially positioning the vitreouscoloring matter. By use of my improved tile, a flow of the vitreousmatter in its fused state causes y the color to'be uniformly striated ormottled. The present invention has for its primary object the rovisionof a tile of novel construction wiiich has a crowned face. Anotherobject of this invention is to. provide a method of distribution ofthe'glaze and coloring to produce uniformity in depths and coloreffects. Y n Y These objects together with other objects andcorresponding accomplishments are ob-V tained by means of the embodimentof my invention illustrated in the accompanying drawing in which:- n

Fig. l is a face view of a fragment of a panel having my improved tilethereon; Fig. 4o 2 is a section as seen on the lines correspond- Y inglynumbered in Fig. l.

Referring more particularly to the drawing and especially Fig. l, abacking of mul tiple ply wood is indicated by 5. This wood is preferablyslotted and tied to'provide a neutralized backing. Tiles are securedthere-V to by means of an adhesiveG which is preferably a yieldingmaterial so as to preventv cleavage of the tiles, chipping, cracking andbreaking under climat-ic changes. vThe tiles are indicated by 7 and thejoints are suitably A' i ,pointed with cement as indicated by 8.

tangular in transverse section and of'shallow depth. The base of thetile is flat as indicated by 9. The front face to be displayed andindicated by v10 is crowned with its sides "5 .K

sloping toward the base to produce a sym# metrical crown.V The frontfaceand edgesl are glazed. l l

In manufacture of the tile, the biscuit is rst formed. A number ofbiscuits are then "65 placed in a tray and powdered vitreous ma- Yterial sprinkled thereover. This vitreous material has matter which willcause color to appear in the glaze upon fusion. The tiles p sotreatedare then placed in an oven and the '7b vitreous material fused.In the manufacture of my tile, the vitreous material may be placed atthe peak of the crown and the biscuits maintained in horizontalposition.

Upon the vitreous material fusing, it runs y-7'5 or Hows downwardlytoward the base over the front face o-f the tile;V The action of gravityin causing the flow results in a uniform depth of the glaze and instriations being produced which center at the peak. If 3b the coloringvitreous material is not ofthe character top-roduce striation, but toproduce a mottled eifectgthese spots areV distributed uniformly over.the surface. The tilewhen finished has a glazed surface, the appearancea5 Y of which is vchanged depending upon the play of light thereon andthe angle of sight of the observer. Thereisa symmetrical vdistributionof the colors, and all this is made withy out any especialskill in thevdistribution of,v ab the powdered vitreous matter.` v v VVha-t I claimYis p Y y l. The method of making glazed tile which p comprises forminga Iceramic biscuit having a i crowned front face, positioning saidbiscuit c;

with its front face uppermost, placing vitreous material Von said frontface, fusing s ald vitreous material to a fluent state and causing fusedvitreous material to flow over said face..

2. The method of making glazed tile rroc 2` l' p f* 1,790,227

which comprises forming a ceramic biscuit having a, Hat base and aCrowned front face sloping toward the base, positioning said biscuitwith its Jfront face uppermost and with its surface disposed symmetricalWith respect to the horizontal, fusing said vitreous material to afluent state, and causing the fused material to HOW over said front faceunder the action of gravity. V

In Witness that I claim the foregoing I have hereunto subscribed my namethis 7th day of June, 1928.

NILS H. CEDERQUIST.

